why not, it's an insta kill combo hit, like ganging up on an enemy with headbutts in golden axe (how the hell did this reach here?), it works almost everytime, and it's reletavly safe to use.

Kazoku is dead meat as of now, he'll need to pull some serious joker out of his sleeve to overcome Kakashi, Yamato, Naruto and Sai (well, even if Kakashi is halfway done). Hidan is a diffrent story, unless Shikamaru has used his braingan again and comprised a super plan for which he has cut off Hidan's headprotector, i can't see him winning.